David Wolff & the Esperanto movement in the USA
Ĉe retejo de David Wolff, eks-prezidanto de ELNA (nun nomata "Esperanto USA"), oni trovos paĝon da interesaj aferoj:
David Wolff articles
Included are links to documents concerning Wolff's frustrations with the American Esperanto movement, correspondence concerning the number of Esperanto speakers, song translations, and suggested promotional material.